50PK980-ZA (CHASSIS:PD02C) - LG TV Service Manual (repair manual). Page 33

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ⓒ LG Electronics. Inc.2009
Making 
전자 - 6-2
Revision 
7/9
PDP TV
Symptom
B. Power Problem
Turn off (Instant, under watching)
Repair Process
7
Instant
Turn off
Turn on after pull out connector
between Power B/D & Y-Sus
N
Power LED
Green?
Y
Check Power B/D
Replace Power B/D
1. Check Y-Sus/ Z-Sus Board
(especially Short or Open)
2. Replace defective B/D
※ To check Power B/D Protection
Check
Power Off History
RCU Off
Turn off
Under watching
“Off Timer”
Set?
“Off timer”
Function off
KEY Off
2HOUR  Off
NO Signal Off
Y
N
Don’t appear
Power Off History
Move 
No Power problem
Section
This is not problem
Normal operation
2010. 2 . 22
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